Heat exchanger housing



FIG. 1 is a perspective view of a heat exchanger housing showing my new design;

FIG. 2 is a side elevational view thereof in slightly larger scale;

FIG. 3 is a top plan view thereof in slightly larger scale;

FIG. 4 is a bottom plan view thereof in slightly larger scale; and

FIG. 5 is an end elevational view thereof in slightly larger scale, it being understood that the opposite end is a mirror image of FIG. 5. 

The ornamental design for a heat exchanger housing, as shown and described. 